Microsoft Azure Solutions Architect Expert AZ-305 Practice Question
Your organization hosts a mission-critical Azure SQL Database in the Business Critical service tier. Compliance rules state that you must be able to restore the database to any point in time during the last 7 days and also keep a restorable copy of each month-end full backup for 10 years. Management wants the simplest native Azure solution that minimizes ongoing administration and storage costs. Which approach should you recommend?
Create an active geo-replica in another Azure region and use geo-restore and backup retention on that replica to satisfy both objectives.
Enable Azure SQL Database long-term retention (LTR) for monthly backups stored in Azure Blob storage and rely on the service's automatic point-in-time restore capability for the recent 7-day window.
Schedule an Azure Automation runbook to export a BACPAC file of the database to Azure Storage at the end of each month and keep the files for 10 years.
Protect the database with Azure Backup by creating a Recovery Services vault and configuring a SQL in Azure VM backup policy.
Azure SQL Database automatically takes full, differential, and transaction log backups that enable point-in-time restore for the retention period configured for the service tier-by default 7 days in Business Critical and extendable up to 35 days. For longer compliance retention, Azure SQL Database offers a built-in Long-Term Retention (LTR) feature that copies full backups to RA-GRS blob storage on a weekly, monthly, or yearly schedule and keeps them for up to 10 years. Enabling an LTR policy for monthly backups therefore meets the 10-year requirement without additional infrastructure or management overhead. Azure Backup cannot protect platform-as-a-service databases, geo-replication is intended for high availability rather than long-term retention, and exporting BACPACs with Automation adds operational complexity and cost compared to the native LTR capability.
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Microsoft Azure Solutions Architect Expert AZ-305
Design business continuity solutions
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